170M3570

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170M3570 Application Field and Working Principle

Electrical Specialty Fuses are the products of an electromechanical device designed for protecting sensitive electronic components and systems from short circuit damage or overloads. It serves as an electrically conductive fuse that performs the essential function of providing adequate protection from overloads and short circuit protection. Specialty Fuses are designed for applications which require a tighter temperature range to meet the requirements of specific applications.

The maximum current rating and the fastest fuse speed determine their application field and are usually expressed as a short-circuit current (scc) rating. This rating sums up the current and circuit characteristics of the fuse, and determines the selection process. The scc rating in the case of the 170M3570 fuse is 40A.

The 170M3570 fuse consists of a one-piece fuse tube, a protective oxide coating to protect the fuse wire, and a cap assembly. The fuse tube houses the blunt end of the fuse wire, while the fuse cap assembly contains a spring-loaded contact assembly and an indicator contact assembly. The indicator contact indicates the status of the fuse and is located at the top of the assembly. The spring-loaded contact sits inside a cup and holds the fuse wire in place between the contact and an oxide coated strip.

The fuse tube is non-conductive and provides the insulation between the cord and the fuse contacts. The fuse tube is made up of two parts, a non-conductive inner tube and a conductive outer tube. The inner tube of the tube assembly acts as a barrier to keep the contacts from touching each other. The outer tube provides the grounding terminal when the fuse is plugged into the socket. The fuse wire runs through the center of the inner tube and is held in place by the contact assemblies.

The working principle of the 170M3570 fuse is simple. When a current flows through the fuse wire, the heat generated melts the fuse wire, which breaks the circuit, thereby preventing further damage to the connected equipment. The protective oxide layer helps protect the fuse wire from the erosive nature of the arc generated during a short circuit. The exclusion of contaminants from the outside environment through the use of the protective oxide layer also protects the components.

The 170M3570 fuse is ideal for applications which require an extremely wide temperature range to meet the requirements of specific applications. Its capabilities make it a suitable choice for high current overload protection and short circuit protection. Its application field includes automotive, telecommunication, power systems, consumer electronics, industrial, and medical applications, as well as fire-resistant applications.

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